12757120

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:693

約数の個数: 64

約数和(自身を含む): 31530240

約数和(自身を除く): 18773120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 643, 992, 1240, 1286, 1984, 2480, 2572, 3215, 3968, 4960, 5144, 6430, 9920, 10288, 12860, 19840, 19933, 20576, 25720, 39866, 41152, 51440, 79732, 82304, 99665, 102880, 159464, 199330, 205760, 318928, 398660, 411520, 637856, 797320, 1275712, 1594640, 2551424, 3189280, 6378560, 12757120]

約数ペア:

[(1, 12757120), (2, 6378560), (4, 3189280), (5, 2551424), (8, 1594640), (10, 1275712), (16, 797320), (20, 637856), (31, 411520), (32, 398660), (40, 318928), (62, 205760), (64, 199330), (80, 159464), (124, 102880), (128, 99665), (155, 82304), (160, 79732), (248, 51440), (310, 41152), (320, 39866), (496, 25720), (620, 20576), (640, 19933), (643, 19840), (992, 12860), (1240, 10288), (1286, 9920), (1984, 6430), (2480, 5144), (2572, 4960), (3215, 3968)]